カトリック教徒は幽霊を信じますか？

Yes, within limits. The Catholic Church has no official teaching on ghosts. It teaches that every soul is judged at death and goes to heaven, purgatory or hell, and its theologians have held that God can allow a soul to appear to the living. What the Church forbids is trying to contact the dead. Augustine answered the question with his own mother. If the dead took part in the lives of the living, he wrote, she would have come to…